


/*class Person{
    static class Inner{

    }

    public void eat(){
        System.out.println("eat");
    }

}*/
/*
class Person {
    class Inner {

    }

    public void eat() {
        System.out.println("eat");
    }

}*/
/*class Base {
    public Base() {
        System.out.println("Base Constructor start");
        funcion();
        System.out.println("Base Constructor end");
    }

    public void funcion() {
        System.out.println("Base funcion");
    }
}

class Derived extends Base {
    private int data;

    public Derived() {
        System.out.println("Derived Constructor");
        data = 10;
    }

    public void funcion() {
        System.out.println("funcion  " + data);
    }

    public void printData() {
        System.out.println("printData  " + data);
    }
}*/

import java.util.Scanner;

class Animal{
        public void makeSound(){
            System.out.println("动物叫。。。");
        }
}

class Dog extends Animal{
    public void makeSound(){
        //super.makeSound();
        System.out.println("汪汪。。。");
    }
}

public class Test {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        int b = scanner.nextInt();
        int c = a>b?a:b;
        System.out.println(c);
    }


    public static void main1(String[] args) {
        //System.out.println("hello world");
        Animal animal = new Dog();
        animal.makeSound();
        /*Dog dog = new Dog();
        dog.makeSound();*/
        /*Animal animal = new Dog();
        animal.makeSound();*/
    }


    /*public static void main(String[] args) {
        Derived derived = new Derived();
        derived.printData();
    }*/

    /*public static void main3(String[] args) {
        Person.Inner inner  =new Person.Inner();
    }*/


    /*public static void main(String[] args) {
        Person.Inner inner = new Person.Inner();

    }*/

    /*public static void main(String[] args) {

    }


    public static void main1(String[] args) {
        int x = 20;
        Integer y = x;
        System.out.println(x);
        System.out.println(y);


    }


    public static void mergeSort(int[] arr, int l, int r) {
        if (l < r) {
            int m = l + (r - l) / 2;

            mergeSort(arr, l, m);
            mergeSort(arr, m + 1, r);

            merge(arr, l, m, r);
        }
    }
*/


}
